London Overground Mildmay Line Collectable Guide
There are 5 collectables near Brondesbury (2 defibrillators, 1 route map, 1 newspaper stand, and 1 fire extinguisher)
Collectable #1: Defibrillator
Collectable #2: Route Map
Collectable #3: Newspaper Stand
Collectable #4: Fire Extinguisher
Collectable #5: Defibrillator